add updateStyle argument to addReactiveFeatures. #38

r-spatial · Feb 13, 2021 · 7b7a51c · 7b7a51c
1 parent bd12850
commit 7b7a51c
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Showing 2 changed files with 19 additions and 3 deletions.
diff --git a/R/reactive.R b/R/reactive.R
@@ -5,8 +5,9 @@ addReactiveFeatures = function(map,
                                on,
                                group,
                                layerId = NULL,
-                               options,
-                               style = NULL) {
+                               options = NULL,
+                               style = NULL,
+                               updateStyle = NULL) {
 
   if (!inherits(x, "geojson")) {
     x = geojsonsf::sf_geojson(x)
@@ -27,7 +28,9 @@ addReactiveFeatures = function(map,
     , on
     , group
     , layerId
+    , options
     , style
+    , updateStyle
   )
 
 }

diff --git a/inst/htmlwidgets/lib/reactive/reactive.js b/inst/htmlwidgets/lib/reactive/reactive.js
@@ -5,7 +5,8 @@ LeafletWidget.methods.addReactiveLayer = function(x,
                                                   group,
                                                   layerId,
                                                   options,
-                                                  style) {
+                                                  style,
+                                                  updateStyle) {
 
     var map = this;
     let out;
@@ -36,6 +37,12 @@ LeafletWidget.methods.addReactiveLayer = function(x,
       var cur_by = e.layer.feature.properties[by];
       var ids = getAllIndexes(nkeys, cur_by);
 
+      e.target.eachLayer(function (layer) {
+        if(layer.feature.properties[[by]] == cur_by) {
+          layer.setStyle(updateStyle);
+        }
+      });
+
       ids.forEach(function(i) {
         if (!map.hasLayer(bind_layer._layers[okeys[i]])) {
           map.addLayer(bind_layer._layers[okeys[i]]);
@@ -47,6 +54,12 @@ LeafletWidget.methods.addReactiveLayer = function(x,
       var cur_by = e.layer.feature.properties[by];
       var ids = getAllIndexes(nkeys, cur_by);
 
+      e.target.eachLayer(function (layer) {
+        if(layer.feature.properties[[by]] == cur_by) {
+          layer.setStyle(layer.defaultOptions.style(layer.feature));
+        }
+      });
+
       ids.forEach(function(i) {
         if (map.hasLayer(bind_layer._layers[okeys[i]])) {
           map.removeLayer(bind_layer._layers[okeys[i]]);